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t_fstatat.c revision 1.2
      1 /*	$NetBSD: t_fstatat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Emmanuel Dreyfus.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: t_fstatat.c,v 1.2 2013/03/17 04:46:06 jmmv Exp $");
     33 
     34 #include <atf-c.h>
     35 #include <errno.h>
     36 #include <fcntl.h>
     37 #include <limits.h>
     38 #include <paths.h>
     39 #include <stdio.h>
     40 #include <string.h>
     41 #include <unistd.h>
     42 #include <sys/param.h>
     43 
     44 #define DIR "dir"
     45 #define FILE "dir/fstatat"
     46 #define BASEFILE "fstatat"
     47 #define LINK "dir/symlink"
     48 #define BASELINK "symlink"
     49 #define FILEERR "dir/symlink"
     50 
     51 ATF_TC(fstatat_fd);
     52 ATF_TC_HEAD(fstatat_fd, tc)
     53 {
     54 	atf_tc_set_md_var(tc, "descr", "See that fstatat works with fd");
     55 }
     56 ATF_TC_BODY(fstatat_fd, tc)
     57 {
     58 	int dfd;
     59 	int fd;
     60 	struct stat st1, st2;
     61 
     62 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
     63 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
     64 	ATF_REQUIRE(close(fd) == 0);
     65 
     66 	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
     67 	ATF_REQUIRE(fstatat(dfd, BASEFILE, &st1, 0) == 0);
     68 	ATF_REQUIRE(close(dfd) == 0);
     69 
     70 	ATF_REQUIRE(stat(FILE, &st2) == 0);
     71 	ATF_REQUIRE(memcmp(&st1, &st2, sizeof(st1)) == 0);
     72 }
     73 
     74 ATF_TC(fstatat_fdcwd);
     75 ATF_TC_HEAD(fstatat_fdcwd, tc)
     76 {
     77 	atf_tc_set_md_var(tc, "descr",
     78 			  "See that fstatat works with fd as AT_FDCWD");
     79 }
     80 ATF_TC_BODY(fstatat_fdcwd, tc)
     81 {
     82 	int fd;
     83 	struct stat st;
     84 
     85 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
     86 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
     87 	ATF_REQUIRE(close(fd) == 0);
     88 
     89 	ATF_REQUIRE(chdir(DIR) == 0);
     90 	ATF_REQUIRE(fstatat(AT_FDCWD, BASEFILE, &st, 0) == 0);
     91 }
     92 
     93 ATF_TC(fstatat_fdcwderr);
     94 ATF_TC_HEAD(fstatat_fdcwderr, tc)
     95 {
     96 	atf_tc_set_md_var(tc, "descr",
     97 		  "See that fstatat fails with fd as AT_FDCWD and bad path");
     98 }
     99 ATF_TC_BODY(fstatat_fdcwderr, tc)
    100 {
    101 	struct stat st;
    102 
    103 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    104 	ATF_REQUIRE(fstatat(AT_FDCWD, FILEERR, &st, 0) == -1);
    105 }
    106 
    107 ATF_TC(fstatat_fderr1);
    108 ATF_TC_HEAD(fstatat_fderr1, tc)
    109 {
    110 	atf_tc_set_md_var(tc, "descr", "See that fstatat fail with bad path");
    111 }
    112 ATF_TC_BODY(fstatat_fderr1, tc)
    113 {
    114 	int dfd;
    115 	struct stat st;
    116 
    117 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    118 	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
    119 	ATF_REQUIRE(fstatat(dfd, FILEERR, &st, 0) == -1);
    120 	ATF_REQUIRE(close(dfd) == 0);
    121 }
    122 
    123 ATF_TC(fstatat_fderr2);
    124 ATF_TC_HEAD(fstatat_fderr2, tc)
    125 {
    126 	atf_tc_set_md_var(tc, "descr", "See that fstatat fails with bad fdat");
    127 }
    128 ATF_TC_BODY(fstatat_fderr2, tc)
    129 {
    130 	int dfd;
    131 	int fd;
    132 	char cwd[MAXPATHLEN];
    133 	struct stat st;
    134 
    135 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    136 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
    137 	ATF_REQUIRE(close(fd) == 0);
    138 
    139 	ATF_REQUIRE((dfd = open(getcwd(cwd, MAXPATHLEN), O_RDONLY, 0)) != -1);
    140 	ATF_REQUIRE(fstatat(dfd, BASEFILE, &st, 0) == -1);
    141 	ATF_REQUIRE(close(dfd) == 0);
    142 }
    143 
    144 ATF_TC(fstatat_fderr3);
    145 ATF_TC_HEAD(fstatat_fderr3, tc)
    146 {
    147 	atf_tc_set_md_var(tc, "descr", "See that fstatat fails with fd as -1");
    148 }
    149 ATF_TC_BODY(fstatat_fderr3, tc)
    150 {
    151 	int fd;
    152 	struct stat st;
    153 
    154 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    155 	ATF_REQUIRE((fd = open(FILE, O_CREAT|O_RDWR, 0644)) != -1);
    156 	ATF_REQUIRE(close(fd) == 0);
    157 
    158 	ATF_REQUIRE(fstatat(-1, FILE, &st, 0) == -1);
    159 }
    160 
    161 ATF_TC(fstatat_fdlink);
    162 ATF_TC_HEAD(fstatat_fdlink, tc)
    163 {
    164 	atf_tc_set_md_var(tc, "descr", "See that fstatat works on symlink");
    165 }
    166 ATF_TC_BODY(fstatat_fdlink, tc)
    167 {
    168 	int dfd;
    169 	struct stat st;
    170 
    171 	ATF_REQUIRE(mkdir(DIR, 0755) == 0);
    172 	ATF_REQUIRE(symlink(FILE, LINK) == 0); /* target does not exists */
    173 
    174 	ATF_REQUIRE((dfd = open(DIR, O_RDONLY, 0)) != -1);
    175 
    176 	ATF_REQUIRE(fstatat(dfd, BASELINK, &st, 0) == -1);
    177 	ATF_REQUIRE(errno == ENOENT);
    178 
    179 	ATF_REQUIRE(fstatat(dfd, BASELINK, &st, AT_SYMLINK_NOFOLLOW) == 0);
    180 
    181 	ATF_REQUIRE(close(dfd) == 0);
    182 }
    183 
    184 ATF_TP_ADD_TCS(tp)
    185 {
    186 
    187 	ATF_TP_ADD_TC(tp, fstatat_fd);
    188 	ATF_TP_ADD_TC(tp, fstatat_fdcwd);
    189 	ATF_TP_ADD_TC(tp, fstatat_fdcwderr);
    190 	ATF_TP_ADD_TC(tp, fstatat_fderr1);
    191 	ATF_TP_ADD_TC(tp, fstatat_fderr2);
    192 	ATF_TP_ADD_TC(tp, fstatat_fderr3);
    193 	ATF_TP_ADD_TC(tp, fstatat_fdlink);
    194 
    195 	return atf_no_error();
    196 }
    197